class_docstr: Unit test class for testing a classifier model.
code: def test_multi_class_create(self):
      d = 10
      n = 100
      np.random.seed(42)
      sf = tc.SFrame()
      for i in range(d):
          sf.add_column(tc.SArray(np.random.rand(n)), inplace=True)
      sf["target"] = [1, 2, 3, 4] * 25
      model = tc.classifier.create(sf, "target")
      self.assertTrue(
          isinstance(
              model,
              tc.toolkits._supervised_learning.SupervisedLearningModel,
          )
      )
  
file_path: turicreate/src/python/turicreate/test/test_classifier.py
imports: from __future__ import print_function
  from __future__ import division
  from __future__ import absolute_import
  import unittest
  import turicreate
  import numpy
label_desc: Use image node_id 2 for calling the ClassifierCreateTest obj's underlying member method code with example usage: obj.test_multi_class_create() without return types